heokert



3 Sheets-Sheet 1 W HEOKERT Paper-Cutting Machine. No. 227,356.

Patented May 11, 1880.

' INVENTUEL WITNESSES};

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N.F ETERS PHOTO LITHOGRAPHER. WASHINGTON D C 3 Sheets-Sheet 2-;

w. HEGKBRT. Paper-Cutting Machine.

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MPETERS. PNOTGQTNDGRAPHER. WASHINGTON. D. C,

UNITED STATES PATENT EErcE.

WILLIAM HEOKERT, OF BROOKLYN, ASSIGNOR TO NATIONAL BANK NOTE COMPANY, OFNEW YORK, N. Y.

PAPER-CUTTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 227,356, dated May 11,1880.

I Application filed April 4, 1879.

To all whom it may concern:

Be it known that 1, WILLIAM HEGKERT, of the city of Brooklyn, county ofKings, and State of New York, have invented a new and 5 usefulImprovement in Paper Cutting Machines, of which the following is aspecification, reference being had to the accompanying drawings, formingpart of the same, in which- Figure l is an end elevation of a machineembodying my invention. Fig. 2 is a plan of same, and Fig. 3 a verticalsection on line so of Fig. 1. Figs. 5 to S, inclusive, are detailedviews of parts of the machine which are fully described below.

My invention relates to that class of papercutting machines in whichpaper is out while lying upon a bed-plate by a vertically-reciprocatingknife; and it consists in the devices and combinations of deviceshereinafter described and claimed.

The frame of the machine is formed of the two upright sides A A,connected by crossbars A A A and plate A B is the bed,

formed of a plane iron plate strengthened by a downwardlyprojecting rimor flange, a, extending around its outer edge, and also by the cross-riba and hollow rib B. G is the knifebar to which the knife 0 is secured.The

0 knife is suspended by the links a a to the sliding blocks D D, whichare held and fitted to slide vertically in ways between the uprightstandards E E, Fig. 3, where are shown the said standards on one side ofthe machine.

3 5 There are similar standards on the opposite side. They form part ofthe frame of the machine. Screw-bolts pass down through -the plate A oneat either end, into female screws in the said sliding blocks D D,whereby the 0 said blocks may be raised or lowered in their ways atpleasure, thereby enabling the knife to be adjusted to the bed. Theheads of these screws are indicated by the letters 0 0.

F is the driving shaft, which revolves inboxes I) I). G is a worm-gearsecured to a shaft which has its bearing in a sleeve, G. The boxes I) band sleeve G are supported on or form part of a bracket, H, that isbolted to one side, A, of the frame, the block D being 0 also attachedto orformingpart of said bracket. The holes through which the bolts passthat bolt the bracket to the frame are slotted, to permit the bracket tobe raised and lowered with the knife-bar. The gear G is driven by anendless screw or worm, c, on the shaft F.

I is a crank-connection pivoted at one end on the crank-pin g, fixed inthe gear G, and at the other in the knife-bar O, at g, the end of thesaid bar being slotted to receive the end of said connection.

It is evident that as the gear is revolved from right to lefttheknife-bar will be re ciprocated horizontally or endwise, and at the sametime elevated and depressed vertically by swinging 011 the links a (R.

It is also evident that the upward motion of the knife-bar will bemorerapid than its downward movement, as it moves upward while the gearG is making less than half a revolution, and downward while said gear ismoving through the remainder or more than half a revolution.

This construction and arrangement ofparts permit the knife and themechanism which actuates it to be raised and lowered together 5 for theadjustment of the knife to the bed. This arrangement and construction ofparts also incidentallyrelieve the general frame from all strain as itis evident that the force exerted through the crank-pin in the gear Gand the connection I to draw down the knifein the act of cutting, whichforce operates to move the bed toward the bracket H, and the saidbracket in an opposite direction, will terminate in the side A of theframe to which said bracket and bed are attached.

L is a clutch splined on the shaft F, fitted to engage the hub L of thedriving-pulley M, running loose on said shaft, as shown in Fig. l.

L is the clutch-lever, pivoted at h, the upper arm being curved, asshown, so as to be parallel with the knife-bar 0. Through this end i,which is enlarged for the purpose, passes a pin, 0, having a shoulder,t", and head i on the outer end and a collar, t near the oppo- 5 site orinner end.

A spiral spring, j, placed in a recess in the end 5, through which thepin 0 passes, acts to press the pin inward over the knife-bar, butpermits it to be Withdrawn so as to clear the said bar.

Now, it is evident that when the knife-bar is raised it will engage thepin 0 in the position shown in Fig. 3, whereby the long arm of the leverL will be carried up with the knifebar and the clutch disengaged fromthe hub L, and that by this movement the motion of the gear G, andconsequently of the knifebar, will be arrested as the bar reaches theupper limit of its stroke. In this position the bar will remain untilthe pin 0 is withdrawn, and thereby disengaged from the knifebar. Whenthis is done the long arm of the lever L will fall by its own weight,thereby throwing into engagement the clutch L, whereby the gear G andknife-bar will be again set in motion.

By the arrangement of parts described the upward movement of theknife-bar is automatically arrested just as it reaches the end of itsupward movement, where it will remain at rest, affording opportunity forthe adjust ment of the paper on the bed until again set in motion by thewithdrawal by the operator of the pin 0.

J is the paper-clamp, the office of which is to press and hold the paperdown upon the bed B while it is being cut. This clamp is secured at itsends to side rails or bars, 1) 19, one of which is shown in Fig. 5, andboth are indicated by dotted lines in Fig. 1. They are fitted to slideautomatically in ways in the sides A A of the frame. To their lower endsis secured the girt J, through the center of which is a female screw, inwhich works the male screw B. This screw B revolves in a bearing in abracket, l bolted to the hollow rib B on the bed B.

K is a shaft, one end of which has its bearings in a bracket, m, alsobolted to the bedplate, the opposite end having its bearings Z in thebracket Z as shown.

a is a beveled gear on the shaft K, which meshes into the beveled gear non the upper end of the screw R.

0 is ahand-wheel on the shaftK It is evident that by turning this shaftK the girt J, and with it the clamp J, may be raised or lowered forpressing and holding the paper on the bed-plate B while being out.

As is shown in the drawings, the shaft K is arranged to extend from onecorner of the machine diagonally inward and across to the bracket 1 thuslocating the hand-wheel 0 at the right-hand corner of the frame, out ofthe way of the operator, while it is still in a position convenient tohis hand.

l is a second bearing in the bracket P, designed to receive the innerend of the shaft K, if it should be desired to shift the said shaft ontothe opposite side of the machine from that shown, the change being madeby simply unbolting the bracket m and changing it to the oppositecornerof the frame, screw-holes being prepared in the bed-plate on that sidefor it.

Fig. 4 is a somewhat enlarged view, in section, of the pulley M, shaftF, and clutch L. If it should be desired to operate the machine by hand,detach the clutch and put a pin through the hole W in the hub L of thepulley and the shaft F.

r 1' are collars secured on the shaft'F by set-screws, or otherwise, forholding the pulley in place on the shaft when running loosely thereon.

A recess, is made in the ends of the hub L next the clutch, in which thecollar 0" is placed, thus placing it out of the way of the clutch.

N is the gage against which the paper is to be placed to be out. It isadjustable on the bed-plate by means of the screw-shaft P. Thisscrew-shaft has its bearings at either end in the rim to of the bed B,as seen in Fig. 3, and is furnished with a hand-wheel, a, with which torevolve it.

P is a nut bolted to the gage N, and extending downward through a slot,8, in the bed, the screw-shaft P working in said nut.

S is an enlarged opening at the end of the slot 8, through which the nutP is passed to its place under the gage N.

B is a hollow rib secured to the bed, which spans the slot .9 andextends from the rear end of the bed to the cross-rib a. A cross-sectionof this rib is shown in Fig. 8. The screw-- shaft P lies within thishollow rib B.

On Sheet 2 of the drawings is shown the mechanism designed forindicating the adj ustment of the gage N. This consists of dials q q,Fig. 6, set in the bed B,that are revolved by the screw-shaft P. Fromeach dial extends a short shaft, r 1, through the bed, on the lower endsof which are worm-gears s s, that mesh with the screw P. On the dialsare index-figures, as shown. It is evident that the movement of the gageN will correspond with that of the dials, and thus the position of thegage in relation to the knife may be correctly indicated by the figureson the dials. One or both dials may be used.

In place of said dials a vertical wheel, t, as

shown in Fig. 7, may be used, a slot being cut in the bed, and the wheelarranged to revolve under the bed, with its periphery in this slot, andjust coming through to the upper surface of the bed, theindicating-figures being placed on the said periphery. The wheel isrevolved by the screw P, working in a wormgear, 15, on the shaft of thewheel, revolving in brackets c 21, secured to the bed B.

I prefer to employ the two dials represented in Figs. 2 and 6 of thedrawings, in order to be able to employ conveniently both the metric andthe English systems of measurement, the figures on one dial indicatingthe metric and on the other the English measurement. If preferred,however, only one dial may be used, and the figures for both systemsplaced on such single dial.

What I claim, and desire to secure by Letters Patent, is-- 1. In apaper-cutting machine, the bracket H, having formed on it the link-boxD, and the bearings b and 1), adapted to support the shaft F, pulley M,and the worm-gear G, all bracket 1 in combination with the shaft K beingvertically adjustable on the side of the and bracket m, madeinterchangeable, so that frame A, as and for the purpose specified. thehand-whee] o andits shaftK may be placed 2. In a paper-cuttingmachine,the dials q g at the right or left hand side of the machine, 5(one or both) in the face of the table B, and the as may be desired bythe operator, all as de I 5 worm-wheels s s, in combination therewith,scribed.

and with the screw-shaft P, as and for the WM. HEOKERT. purposespecified. Witnesses:

3. In a paper-cutting machine, the screw R, J. P. FITCH, 10 the bevelgear 02, the bevelpinion n, and M. F. CLIFTON.

